Is needed to say that VILLAINS is implied characters like Myers, Freddy, Jason or even Chucky. But Regan, from Exorcist? Jaws???
This list could be called The 13 Most Iconic Killers ('cos they kill people); even like this, we can't say Regan is a killer, or villain or anything about it...
Now, my TOP 10 KILLERS list should be something like this: